From 8e81742dc0266eb959f80e8e473968058bca0271 Mon Sep 17 00:00:00 2001
From: Makoto Onuki <omakoto@google.com>
Date: Mon, 23 Mar 2020 10:05:48 -0700
Subject: [PATCH] Make Log.isLogagble @FastNative

This CL doens't change println_native() because:
- To avoid potential risks (jank?) because it's kind of late in the RVC
cycle.
- The JNI overhead is unlikely to be a major problem in logging. If apps
are making *that* many log calls, that itself would be a bigger
problem.

Test: treehugger / boot
Bug: 152217649
Change-Id: I86aeb62b217e5331e6bbd02a0ba592fd050a41b2
---
 core/java/android/util/Log.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/java/android/util/Log.java b/core/java/android/util/Log.java
index 9921bf0bc5278..2ded473930f7a 100644
--- a/core/java/android/util/Log.java
+++ b/core/java/android/util/Log.java
@@ -27,6 +27,8 @@ import com.android.internal.os.RuntimeInit;
 import com.android.internal.util.FastPrintWriter;
 import com.android.internal.util.LineBreakBufferedWriter;
 
+import dalvik.annotation.optimization.FastNative;
+
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.io.Writer;
@@ -228,6 +230,7 @@ public final class Log {
      *         for Nougat (7.0) releases (API <= 23) and prior, there is no
      *         tag limit of concern after this API level.
      */
+    @FastNative
     public static native boolean isLoggable(@Nullable String tag, @Level int level);
 
     /**